Micr Character Reading, And Printing On Front - Epson TM-U675 Service Manual

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MICR character reading, and printing on front

When using the MICR process, the force of the drive of the paper feed motor switches to the slip
paper feed gear using the J/S change mechanism. A check is inserted just like any other slip.
When a check is inserted along the right edge of the slip guide lower frame in the direction
indicated by the arrow in the figure below, it is fed up to the form stopper and positioned.
After the T.O.F. and B.O.F. detectors determine that a check has been inserted, the sub slip feed
roller and sub slip hold roller take hold of the check in an operation like that described for
positioning the slip paper. This prepares for movement of the form stopper in the direction
indicated by the arrow to feed the check. The MICR solenoid is then energized, moving the
MICR lever in the direction indicated by the arrow, and the MICR fixing mounted to the MICR
lever pushes the check against the MICR head.
Next, the paper feed motor rotates at the MICR reading speed in the same way as for slip paper
feed, transporting the check. When the MICR characters on the check pass over the MICR
magnet in front of the MICR unit, they are magnetized. The check is transported farther, and
when the characters pass through the MICR unit, they are read by the MICR head, shown in
Figure D-41.
In the event the MICR characters cannot be recognized during the MICR reading process, the
check is ejected out the rear (see Note 1).
Upon completion of MICR reading, the check is fed to the position corresponding to the format
for printing on the front of the check, and the head carriage assembly prints in the prescribed
format on the front of the check. After printing, the check is fed forward and ejected, completing
the operation. The slip feed roller rotates during the front printing process, feeding the check
forward in the same way as for a slip (see Note 2).
Slip guide upper frame
B.O.F. detector
Check paper
Appendix D-32 Product Overview
Sub slip paper hold roller
MICR assembly
MICR magnet
Slip guide lower frame
T.O.F. detector
Form stopper
MICR fixing
Sub slip feed roller
MICR lever
Figure D-40
Rev.D